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Showing 1-20 of 6,711 results
  1. Synthesis of new amino phosphonates based on secondary amines using microwave activation and phthalocyanine catalysis

    The condensation of diethyl phosphite with aldehydes and cyclic ketones under conditions of thermal catalysis and microwave radiation (MW) afforded...

    Yu. G. Borisova, A. I. Musin, ... S. S. Zlotsky in Russian Chemical Bulletin
    Article 01 April 2024
  2. Palladium N-Heterocyclic Carbene Pre-catalysts Bearing Different Ancillary Ligands for the Buchwald–Hartwig Amination of Cyclic Secondary Amines with Aryl Chlorides

    Abstract

    Six novel palladium N -heterocyclic carbene complexes bearing different ancillary ligands such as pyridine, 1-methylimidazole,...

    Murat Kaloğlu, İsmail Özdemir in Catalysis Letters
    Article 09 August 2023
  3. Solvent effect, quantification and correlation analysis of the nucleophilicities of cyclic secondary amines

    Kinetics of the S N Ar reactions of four 7-L-4-nitrobenzofurazans 1a-d (L = Cl, OC 6 H 5 , OCH 3 , Im + , Cl ) with three cyclic secondary amines 2a-c in...

    Raissi Hanen, Mahdhaoui Faouzi, ... Boubaker Taoufik in Chemical Papers
    Article 19 September 2022
  4. C(sp3)–C(sp3) bond formation through nitrogen deletion of secondary amines using O-diphenylphosphinylhydroxylamine

    The nitrogen deletion of secondary amines has emerged as an effective strategy for direct molecular skeletal editing and carbon–carbon bond...

    Ting Guo, **ghao Li, ... Hongjian Lu in Nature Synthesis
    Article 07 June 2024
  5. Thermodynamics of complex formation of silver(I) with substituted pyridines and cyclic amines in non-aqueous solvents

    The understanding of the thermodynamic stability and speciation of metal complexes in solution requires access to their enthalpy and entropy of...

    Martina Sanadar, Anđela Kovačević, ... Marilena Tolazzi in Journal of Thermal Analysis and Calorimetry
    Article Open access 23 February 2024
  6. Comparison of kinetic and thermodynamic parameters of reaction of individual conformers of α-substituted β-ethoxyvinyl trifluoromethyl ketones with secondary amines

    The kinetic and thermodynamic parameters of the reaction of three most possible conformers (viz . E-s-E-s-E- trans, E-s-Z-s-E- trans, and E-s-Z-s-E- gosh)...

    Sergey I. Vdovenko, Igor I. Gerus, ... Maria Wierzejewska in Reaction Kinetics, Mechanisms and Catalysis
    Article 24 February 2024
  7. Reactions of N-Benzyl- and N-(2-Phenylethyl)maleimides with Secondary Amines

    Abstract

    It was found that the reactions of N -benzylmaleimide with secondary amines proceed at the double C=C bond and lead to the formation of 3- N , N -R...

    O. A. Kolyamshin, Yu. N. Mitrasov, ... Yu. Yu. Pylchikova in Russian Journal of General Chemistry
    Article 01 May 2022
  8. α-Silyl amines as electron donors: application in synthetic organic chemistry

    α-Silyl amines are unique organosilicon compounds containing a geminal NCH 2 Si fragment. The introduction of a triorganylsilyl group at α-position to...

    N. F. Lazareva, I. M. Lazarev in Russian Chemical Bulletin
    Article 01 April 2024
  9. Strategies Toward the Catalyst-Free α-C–H Functionalizations of Tertiary Amines

    α-C–H functionalization of tertiary amines has been a highly studied field for the past two decades because several important nitrogen containing...

    Mohit L. Deb, Pranjal K. Baruah in Topics in Current Chemistry
    Article 03 May 2023
  10. Copper(II) complex of N,N´-bis-(benzimidazol-2-yl-methyl)-hexane-1,6-dicarboxamide ligand: synthesis, structure and catalytic oxidation of amines in ionic liquid

    A new copper(II) complex, [Cu(L)NO 3 ]NO 3 ·2H 2 O, has been synthesized with N , N' - bis -(benzimidazol-2-yl-methyl)-hexane-1,6-dicarboxamide as a ligand,...

    Gauri Ahuja, Kuldeep Mahiya in Transition Metal Chemistry
    Article 06 December 2023
  11. Divergent synthesis of aryl amines and dihydroquinazolinones via electrochemistry-enabled rhodium-catalyzed C–H functionalization

    Electrochemistry-enabled rhodium-catalyzed C–H amination and amination cyclization of arene assisted by a weakly coordinating amide have been...

    Yi-Kang **ng, Zhen-Hua Wang, ... Tian-Sheng Mei in Science China Chemistry
    Article 12 June 2023
  12. Properties of poly(methacrylate)s bearing hydroxyurethane structures synthesized by various amines with poly(methacrylate)s containing five-membered cyclic carbonates obtained from poly(glycidyl methacrylate) and carbon dioxide

    We evaluated properties such as thermal stability and solubility of poly(methacrylate)s bearing hydroxyurethane structures synthesized by various...

    Yasuyuki Mori, Takahiro Houda, ... Takeshi Endo in Polymer Bulletin
    Article 26 November 2021
  13. Secondary Metabolites from Extremophiles

    The microorganism that adapts and grows to extreme/harsh environments is known as extremophiles. The diversity of extremophiles is classified with...
    Koustubh Diwakar Mashakhetri, C. S. Aishwarya, ... Felix Bast in Trends in Biotechnology of Polyextremophiles
    Chapter 2024
  14. Synthesis of 1-[(1,1′-biphenyl)-4-yl]naphthalene from amines obtained by the Stevens rearrangement of N-[3-(naphthalen-1-yl)prop-2-yn-1-yl]-3-phenylprop-2-en-1-aminium bromides

    A convenient procedure to access 1-[(1,1′-biphenyl)-4-yl]naphthalene by the Stevens rearrangement of the aminium salts bearing simultaneously...

    E. O. Chukhajian, L. V. Ayrapetyan, G. A. Panosyan in Russian Chemical Bulletin
    Article 28 June 2022
  15. Effect of Copper on the Oxidation Mechanisms of Tertiary and Secondary Amines of Methyl-naphthyl- cyclen-Modified Gold Electrodes

    Tetraazamacrocycle such as 1,4,7,10-tetraazacyclododecane “cyclen” are known for efficient complexation of metallic ions and were used as an ionic...

    Hassen Touzi, Ayoub Haj Said, ... Nicole Jaffrezic-Renault in Journal of Inorganic and Organometallic Polymers and Materials
    Article 25 January 2021
  16. Combined radical and ionic approach for the enantioselective synthesis of β-functionalized amines from alcohols

    Chiral amines are among the most important organic compounds and have widespread applications. Enantioselective construction of chiral amines is a...

    Kai Lang, Yang Hu, ... X. Peter Zhang in Nature Synthesis
    Article 13 July 2022
  17. Modern Approaches to Synthetic Design of Chiral α-Tertiary Amines Based on Trifluoromethylcontaining Ketimines: A Review

    Enantioselective construction methods of chiral derivatives of α-tertiary amines using acyclic and cyclic trifluoromethylketimines are considered....

    V. A. Sukach, V. M. Tkachuk, ... M. V. Vovk in Theoretical and Experimental Chemistry
    Article 01 January 2022
  18. Red light-induced conjugation of amines through amide bond formation triggered via photooxidation of 3-acylindolizines

    The development of a conjugation method initiated by irradiation of long-wavelength light (>500 nm) to prepare densely functionalized molecules while...

    Kenji Watanabe, Asuka Kuratsu, ... Takamitsu Hosoya in Communications Chemistry
    Article Open access 05 August 2022
  19. A review towards synthesis of heterocycles using propargyl alcohols and propargyl amines

    In the area of drug discovery, nitrogen/oxygen-based heterocycles have been utilized as key intermediates and have great attention in organic...

    Amit Ranjan Pandey, Durgesh Kumar Tiwari, ... Sudhir Kumar Sharma in Monatshefte für Chemie - Chemical Monthly
    Article 20 May 2022
  20. Photocatalytic divergent decarboxylative amination: a metal-free access to aliphatic amines and hydrazines

    Nitrogen-containing motifs are widely present in natural products, bioactive molecules, and drugs. Accordingly, effective synthetic methods with high...

    **anli Shu, Ruting Xu, Saihu Liao in Science China Chemistry
    Article 31 August 2021
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